20976618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 46063296

約数和(自身を除く): 25086678

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 137, 151, 169, 274, 302, 338, 411, 453, 507, 822, 906, 1014, 1781, 1963, 3562, 3926, 5343, 5889, 10686, 11778, 20687, 23153, 25519, 41374, 46306, 51038, 62061, 69459, 76557, 124122, 138918, 153114, 268931, 537862, 806793, 1613586, 3496103, 6992206, 10488309, 20976618]

約数ペア:

[(1, 20976618), (2, 10488309), (3, 6992206), (6, 3496103), (13, 1613586), (26, 806793), (39, 537862), (78, 268931), (137, 153114), (151, 138918), (169, 124122), (274, 76557), (302, 69459), (338, 62061), (411, 51038), (453, 46306), (507, 41374), (822, 25519), (906, 23153), (1014, 20687), (1781, 11778), (1963, 10686), (3562, 5889), (3926, 5343)]